N.Raj Kumar, Kolusu Varalakshmi,. “Optimized Multimodal Medical Image Fusion Approach Based On Phase Congruency And Directive Contrast In Nsct Domain”. International Journal of Engineering and Computer Science 4, no. 08 (August 28, 2015). Accessed May 2, 2024. http://ijecs.in/index.php/ijecs/article/view/3280.